Update license headers

Author: emmanue1

app/src/main/java/org/jd/gui/util/function/TriConsumer.java

@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2008-2019 Emmanuel Dupuy.
+ * This project is distributed under the GPLv3 license.
+ * This is a Copyleft license that gives the user the right to use,
+ * copy and modify the code freely for non-commercial purposes.
+ */
+
 package org.jd.gui.util.function;
 
 import java.util.Objects;